Yes they're an upgrade from the microsoft branded mic but they're no where up to par with other headset/phones. I've tried trittons both turtles beaches and frankly ther're all hype.
Now I'm in love with the my pair of audio-technica AD-700's. The sound stage is simply phenomenal in comparison of turtle beaches (I've owned a pair of x11's and tested a friend's mw3 branded TB).

My X12's are cheap and they get the job done. It's all that matters to me. The only reason for getting these headsets is if you're planning on buying Turtle Beaches sometime soon and these happen to be out. I mean, why not?